Buses are always punctual in city X. How long, at the most, will Mr. Roy have to wait for the bus ? I. Mr. Roy has come to the bus stand at 9 A.M. II. There is a bus at 10 A.M. and possibly another bus even earlier.

• If the data in statement I alone are sufficient to answer the question
• If the data in statement II alone are sufficient answer the question
• If the data either in I or II alone are sufficient to answer the question;
• If the data in both the statements together are needed.